If the shaft is made of iron sheet material, insulate the surrounding of the shaft and prevent
the heat loss.
The shaft should not have a sectional narrowness at any spot.
Make sure not to install another appliance or more than one boiler to the same shaft.
The boiler should not be installed to the shaft at a reverse angle preventing draught (see
page 16).
The shaft should be periodically cleaned not allowing for the formation of tarry soot
inside which makes it impossible to clean the shaft.
The flue pipe (chimney) mustn
’
tbe mounted with level which prevent the drought of it.
End of the chimney must be 40 cm higher than tip of the roof.
Chimney should be well insulated and heat losses should be reduced. When the chimney
cools down the draught also decreases and in the cooled chimney the formed acids
combined with the effect of condensation can lead corrosion on the inner surfaces of the
chimney or down inside the boiler, therefore chimneys should also be insulated.
10
HEATING SYSTEMS
